public class WhileDemo13 {
    public static void main(String[] args) {
        int i = 1;
        while (i <= 9) {
            int j = 1;// 每一行j都要重写初始化
            while (j <= i) {
                System.out.print(j + " * " + i + " = " + i * j + "\t");
                j++;
            }
            System.out.println();

            i++;
        }
        //asser
    }
}
